Hardness is caused by divalent metallic cations.
硬度是由一些两价金属阳离子引起的。
Sodium is one of the major toxic cations in plants.
是造成植物盐害的主要离子之一。
The paper introduces the research on RHJ asphalt emulsifiers of cations.
介绍了RH J型阳离子沥青乳化剂的研究过程。
One means of accomplishing this end is to add trivalent cations to the water.
实现这一目的的一种方法是将三价阳离子加入水中。
N deposition can acidify the soil and leaching the exchangeable base cations.
氮沉降能引起土壤酸化，同时造成土壤盐基离子淋失。
The usual source of trivalent cations in water treatment is alum (aluminum sulfate).
在水处理中三价阳离子通常来源于明矾（硫酸铝） 。
It is obvious th at A. C. motors are superior to D. C. motors in many appli cations.
显然，交流电机在许多应用场合比直流电机优越。
A negative correlation existed between the levels of cations in haemolymph and excreta.
血淋巴中阳离子水平与排泄物的量呈负相关。
It comes from the fact that in an electrochemical cell, the cations are those that are reduced.
这来源于在电池中，正离子是被减少的。
The regular patterns of soil temperature changes with the time and lo-cations are analysed.
分析了土温随时间、空间而变化的规律。
Marine manganese nodule containing a large amount of metallic cations is a natural catalyst.
由于矿物晶格中含有催化剂金属离子，大洋锰结核是天然的催化剂。
Only large cations with low charge give a stable ionic lattice with the large polyhalide ions.
仅仅带低电荷的大的阳离子，能和大的多卤化物离子产生稳定的离子晶格。
Only large cations with low charge give a stable ionic lattice with the large polyhalide ions .
仅仅带低电荷的大的阳离子，能和大的多卤化物离子产生稳定的离子晶格。
It makes soils more acid since cations (e. g. potassium and magnesium) are replaced by hydrogen ions.
它能使土壤酸化，因为阳离子(如钾离子和镁离子)被氢离子所代替。
Common cations in soil could make obviously absorption rate of water of high water-absorbing resin reduce.
土壤中常见阳离子对高吸水树脂吸水率具有很强的降低作用。
High contain of water - soluble cations was found during the later stage of storage with calcium treatments.
钙处理使水溶性阳离子总量在贮藏后期仍保持较高水平。
More and more people are opting for so called 'Stay-cations' or domestic tourism instead of traveling abroad.
越来越多的人正在选择所谓的“居家旅游”或者国内游，而不是出国旅行。
For ionic compounds, the state of having exactly the ratio of cations to anions specified by the chemical formula.
在离子化合物中，正、负离子的比例严格遵守化学公式定义的化合价关系。
Structural characteristics and sorptive behaviors and mechanisms for heavy metal cations of bentonite are analysed.
分析了膨润土的结构性质和它对重金属离子的吸附机理。
The positively-charged ions in the solution are called cations, and the negatively-charged particles are called anions.
溶液中带正电荷的离子称为阳离子，带负电荷的离子称为阴离子。
The method of exchange coefficient of cations involves a complex calculation procedure and fits to solve field problems.
阳离子交换系数方法计算过程复杂，适用于解决野外实际问题。
Surgical and non-surgical indi- cations were assessed by clinical features, volume of hematoma and intracranial pressure.
根据临床表现，血肿量，颅内压力变化，探讨手术与非手术治疗的指征。
The stability of hydrated divalent iodates is expected to be related to the electronegativity of the corresponding cations.
并讨论了二价碘酸盐水化物的稳定性与阳离子电负性的关系。
When an organic molecule like electron donating pyridine adsorbs on the surface, cations get reduced due to charge transfer.
当一个有机分子如电子给予体吡啶吸附在表面上时，阳离子由于电子转移而还原。
When the electrolytes pass the membrane, anions and cations can flow in parallel through their respective exchange elements.
当电解质通过荷电镶嵌膜时，阴、阳离子分别通过其对应的交换单元。
The improvement in cycling performance is attributed to the stabilization in the spinel structure by the doped metal cations.
循环性能的提高归于掺杂的金属阳离子使尖晶石结构趋于更稳定。
We find that the chain transfer reaction between oligomeric radical cations and monomers is the key to elucidate these questions.
我们根据实验结果并借鉴前人的经验，指出低聚物阳离子自由基向单体的链转移是诠释这一切问题的关键。
Mulberry shoot powder(MSP) is rich in cellulose and lignin, which can remove heavy metal cations from aqueous solution by adsorption.
桑枝粉富含纤维素和木质素，具有吸附去除废水中重金属离子的功能。
The soil macro-aggregates can check the leaching of the cations and anions in fertilizer salt and are favourable to use of fertilizer.
土壤大团聚体可以抑制施肥盐阴，阳离子的淋溶，有利于提高对肥料的利用。
Carbon cations are important organic reaction intermediates, and hydrogen shift is a key path through which carbon cations isomerizes.
正碳离子是重要的有机化学反应中间产物，而氢原子移位则是正碳离子异构化的主要反应途径。
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